You probably have the sheet set to manual calculation - press F9 to
force a re-calculation. Go to Tools | Options | Calculation tab and
check Automatic and OK.

Hope this helps.

Pete

On Jul 5, 1:42 pm, Pisistratus
wrote:
I'm using relative referencing, but what exactly happening is when I copy the
formula i.e =A1+B1 from Cell C1 to Cell C2, the formula copied in Cell C2 is
=A2+B2 as expected, but the value is of Cell C1 i.e value of =A1+B1. why is
the value not changing ?

I'm aware of absolute referencing and i've checked for the $ sign in the
formula and there aren't any.